Improved cooling glass-press



@uiten tstesgatwt @ffice y IMPROVBD COOLING GLASS-PRESS.

HENRY I. LEASURE AND lJAMES S. GILL, 0F WHEELING, WEST VIRGINIA.'Letters Patent No. '60,203, dated December 4, 1866. i i i TO ALL WHOMIT MAY CONCERN:

Be it known that we, HENRY I. LEASUBE and JAMES S. GILL, of Wheeling, inthe county of Ohio, and State of West Virginia, have invented a new anduseful improvement in Cooling-Glass Press Plungers; and we do herebydeclare that the following is a full, clear, and exact descriptionthereof, which will enable others skilled y in the art to make and vusethe same, reference being had to the accompanying drawing, forming partof this specication.

The object of our invention is to obviate a di'iculty which has alwaysbeen met with by manufacturers o@ pressed glasslware, and that is, theheating of ythe plunger during the process of moulding and pressing themolten glass into shape to such a degree as to cause muclr' delay, andour invention consists in soforlning -the plunger that a constant streamof water or other liquid or. air may be made topass into and bedischarge'd from the plunger when it is in use, whereby it may be keptcool. The drawing represents a vertical section of a plunger forpressing tumblers and other similar articles.

A is the plunger, constructed hollow; the hollow portion extends fromthe top to near the bottom. B represents this hollow portion at itslower end. C is a plug fitted into the` hollow space Bkand extendingdown to near .the bottom of it,n as seen in thedrawing. In this plug areh oles, a a.- These holes extend from the lower end to near the top ofthe plug, where theycommunicate with pipes, D and E. Connected with thepipe D there is a reservoir, F, which contains water or other liquid,when liquid is used for cooling. In the pipe D there is a cock, g, tolet on or stop o' the water, or air, if ,air be used forA cooling. Theplunger is connected with the piston-rod of the press in the usualmanner. The pipe E isa discharge-pipe for the water or air. The

pipe D may be connected with bellows, as before' intimated, and acurrent of cold air to be forced through the plunger for the purpose ofcooling it. When water or other liquid is used, the discharge-pipe E maybe connected with Vthe vessel or reservoir F, but as steam would begenerated in the plunger, we think it better to discharge the steam andwater, as indicated in the drawing. By turning `the cock g a constantstream of water may be made to circulate through the plunger, carryingoff a large portion of the heat. We do not confine',

ourselves to this particular method of cooling the plungers ofglass-presses with water or air. We are aware that it may be done inother ways than that which we have described. Holes may be bored intothe plunger-- atV an angle, and connect together near vthe 'bottom withpipes attached, as already described. Or the pistonfrod may be a hollowtube connected with apertures in the plunger, for the admission anddischarge of either water,

or air, and there may be other modifications.

But having thus described our invention, what we claim as new, anddesire to secure by Letters Patent, is- Cooling the plunger of aglass-press with water or other liquid, or atmospheric air,substantiallyaasherein shown and described.

HENRY I. LEASURE, JAMES S. GILL. i

Witnesses:

JESSE S. WHEAT, BENEDICK Srnrnui..

